Tips on Customizing RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator

How to Hide Feedzy RSS Feeds Lite Admin Menus

function plt_hide_feedzy_rss_feeds_menus() {
	//Hide "Feedzy".
	remove_menu_page('feedzy-admin-menu');
	//Hide "Feedzy → Import Posts".
	remove_submenu_page('feedzy-admin-menu', 'edit.php?post_type=feedzy_imports');
	//Hide "Feedzy → Feed Categories".
	remove_submenu_page('feedzy-admin-menu', 'edit.php?post_type=feedzy_categories');
	//Hide "Feedzy → Settings".
	remove_submenu_page('feedzy-admin-menu', 'feedzy-settings');
	//Hide "Feedzy → Support".
	remove_submenu_page('feedzy-admin-menu', 'feedzy-support');
	//Hide "Feedzy → Setup Wizard".
	remove_submenu_page('feedzy-admin-menu', 'feedzy-setup-wizard');
	//Hide "Feedzy → About Us".
	remove_submenu_page('feedzy-admin-menu', 'ti-about-feedzy_rss_feeds');
	//Hide "Feedzy → Upgrade to Pro".
	remove_submenu_page('feedzy-admin-menu', 'https://themeisle.com/plugins/feedzy-rss-feeds/upgrade/?utm_source=wpadmin&utm_medium=index&utm_campaign=aboutUsPage&utm_content=feedzy-rss-feeds');
}

add_action('admin_menu', 'plt_hide_feedzy_rss_feeds_menus', 11);

Where do I put this code?

How to Hide the "WordPress Guides/Tutorials" Dashboard Widget

function plt_hide_feedzy_rss_feeds_dashboard_widgets() {
	$screen = get_current_screen();
	if ( !$screen ) {
		return;
	}

	//Remove the "WordPress Guides/Tutorials" widget.
	remove_meta_box('themeisle', 'dashboard', 'normal');
}

add_action('wp_dashboard_setup', 'plt_hide_feedzy_rss_feeds_dashboard_widgets', 20);